- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02404415
The Vanderbilt Atrial Fibrillation Ablation Registry (VAFAR)
April 21, 2026 updated by: Giovanni Davogustto, Vanderbilt University
The Vanderbilt Atrial Fibrillation Ablation registry (VAFAR) is a prospective clinical and genetic biorepository that systematically enrolls patients undergoing atrial fibrillation (AF) ablation.
The registry was started in 2011 and has greater than 1000 AF ablation records with stored blood and DNA samples.
The goals of VAFAR are to: 1) identify clinical, genetic, and serological predictors of response to AF ablation in order to improve patient selection, and 2) to provide a resource for translational research investigating the electrophysiologic mechanisms of AF pathogenesis.
Study Overview
Status
Active, not recruiting
Conditions
Detailed Description
The study population consists of patients at least 18 years of age who are scheduled for AF ablation at Vanderbilt University.
Data recorded at enrollment includes a detailed past medical history and measurements from pre-ablation imaging (cardiac MRI or CT).
At the time of ablation, a blood sample is collected for storage of plasma/serum and extraction of DNA, and details of the ablation procedure are recorded.
Post-ablation monitoring for arrhythmia recurrence is performed according to a standard clinical follow-up schedule at 3, 6, and 12-months.
ECG's are performed at each follow-up visit along with placement of an ambulatory ECG-monitor.
At 6-months post-ablation, cardiac imaging with a repeat cardiac MRI or CT is performed.
Study Type
Observational
Enrollment (Actual)
2478
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Tennessee
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Nashville, Tennessee, United States, 37232
- Vanderbilt University Medical Center
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Sampling Method
Probability Sample
Study Population
Adults scheduled to undergo an atrial fibrillation ablation
Description
Inclusion criteria:
- Age >18 years
- Able to give written, informed consent
- Scheduled for an ablation procedure to treat atrial fibrillation
Exclusion criteria:
1. None
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
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Atrial fibrillation recurrence
Time Frame: 2 years
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2 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Moore B Shoemaker, MD, MSCI, Vanderbilt University
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Shoemaker MB, Muhammad R, Farrell M, Parvez B, White BW, Streur M, Stubblefield T, Rytlewski J, Parvathaneni S, Nagarakanti R, Roden DM, Saavedra P, Ellis C, Whalen SP, Darbar D. Relation of morbid obesity and female gender to risk of procedural complications in patients undergoing atrial fibrillation ablation. Am J Cardiol. 2013 Feb 1;111(3):368-73. doi: 10.1016/j.amjcard.2012.10.013. Epub 2012 Nov 17.
- Benjamin Shoemaker M, Muhammad R, Parvez B, White BW, Streur M, Song Y, Stubblefield T, Kucera G, Blair M, Rytlewski J, Parvathaneni S, Nagarakanti R, Saavedra P, Ellis CR, Patrick Whalen S, Roden DM, Darbar R D. Common atrial fibrillation risk alleles at 4q25 predict recurrence after catheter-based atrial fibrillation ablation. Heart Rhythm. 2013 Mar;10(3):394-400. doi: 10.1016/j.hrthm.2012.11.012. Epub 2012 Nov 23.
- Shoemaker MB, Gidfar S, Pipilas DC, Tamboli RA, Savio Galimberti E, Williams DB, Clements RH, Darbar D. Prevalence and predictors of atrial fibrillation among patients undergoing bariatric surgery. Obes Surg. 2014 Apr;24(4):611-6. doi: 10.1007/s11695-013-1123-8.
- Shoemaker MB, Bollmann A, Lubitz SA, Ueberham L, Saini H, Montgomery J, Edwards T, Yoneda Z, Sinner MF, Arya A, Sommer P, Delaney J, Goyal SK, Saavedra P, Kanagasundram A, Whalen SP, Roden DM, Hindricks G, Ellis CR, Ellinor PT, Darbar D, Husser D. Common genetic variants and response to atrial fibrillation ablation. Circ Arrhythm Electrophysiol. 2015 Apr;8(2):296-302. doi: 10.1161/CIRCEP.114.001909. Epub 2015 Feb 14.
- Farrell M, Yoneda Z, Montgomery J, Crawford D, Wray LL, Xu M, Kolek MJ, Richardson T, Lugo R, Metawee M, Michaud G, Estrada JC, Saavedra P, Shen S, Kanagasundram A, Ellis CR, Crossley G, Roden D, Shoemaker MB. Non-pulmonary vein mediated atrial fibrillation: A novel sub-phenotype. PLoS One. 2017 Sep 7;12(9):e0184354. doi: 10.1371/journal.pone.0184354. eCollection 2017.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
October 1, 2011
Primary Completion (Estimated)
October 1, 2028
Study Completion (Estimated)
October 1, 2028
Study Registration Dates
First Submitted
March 19, 2015
First Submitted That Met QC Criteria
March 25, 2015
First Posted (Estimated)
March 31, 2015
Study Record Updates
Last Update Posted (Actual)
April 27, 2026
Last Update Submitted That Met QC Criteria
April 21, 2026
Last Verified
April 1, 2026
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 110881
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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